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N. T. MILLS BELL.

No. 568,693. Patented Sept. 29, 18.96.

UNITED STATES PATENT OFFICE.

NORMAN T. MILLS, OF MASSACHUSETTS, ASSIGNOR OF ONE-HALF TO ALVIN T.MORRILL, OF BROOKLINE, MASSACHUSETTS.

BELL.

SPECIFICATION forming part of Letters Patent No. 568,693, datedSeptember 29, 1896.

Application filed October 5 1 895.

To all whom it may concern- Be it known that I, NORMAN T. MILLS, ofEverett, county of Middlesex, State of Massachusetts, have invented anImprovement in Bells, of which the following description, in connectionwith the accompanying drawings, is a specification, like letters on thedrawings representing like parts.

This invention relates to that class of gongbells wherein. thehammer-carrier has a rotating motion, and more particularly tobicyclebells, the object of this invention being to simplify, cheapenthe cost, and improve the construction of such bells,whereby allrattling of the parts is prevented and a better operation attained.

Figure 1 shows in section and elevation a bell embodying my invention,the section being taken on the irregular line 00 m, Fig. 2. Fig. 2 is atop or plan view of the bell with the gong, hammer-carrier, and one ofthe gears omitted. Fig. 3 is a vertical sectional View of the bell,taken on the line w m, Fig. 4. Fig. 4 is a top or plan view of the bellwith the gong removed. Figs. 5 and 6 are greatly-enlarged views of thehammer-carrier in plan and side elevation, respectively. Fig. 7 is adetached plan view of the actuating-leverand its segmental gear; andFig. 8 is a detail view of the locking-gear, to be described.

The base a has secured thereto by an upturned stud'a, theaded at itsupper end at a to receive the threaded hub b of the gong b, one memberof a clamp,-(shown as a plate 0,) bent down centrally and upturned atits ends to form lugs c, which are extended into slots in the base a toaid in rigidly securing the fixed member of the clamp thereto. Anadjustable clamp member 0 is oppositely bent and connected to the fixedmember by adj usting-screws 0 the base a being provided with holes a(see Fig. 3) to receive the inner ends of the screws when fully turnedup, the clamp serving to attach the base to a bicycle or other desiredobject.

The stud a is surrounded by a thin plate 0 resting on the base, posts aand a rising from the plate, the post a serving as a pivot for a pinion01, having at its upper end an attached pinion d, whilethe post a actsas a pivot for the actuating-lever 6, (shown separately in Serial No.564,790. (No model.)

Fig. 7 having an internal segmental gear 6' at its inner end. A spring,5, secured at one end to the actuator e, inside its pivot a isattached, as by a screw 5, at its other end to the base to normallyretain the actuator in position. (Shown in Figs. 2 and 4.)

The stud a is surrounded loosely at its lower end by a pinion f, restingpreferably on a washer f and a gear f is secured to or forms a part ofthe pinion f, said gear being shown separately in Fig. 8. This gear hasa portion of its periphery f blank or not toothed, the toothed portionengaging the pinion d, while the pinion f is engaged by the internalsegmental gear or rack 6, whereby movement of the actuator 6 willtransmit rotation to the pinion f, and thence by gear f to pinion dandgear 01.

The blank portion of the pinion f is of such length that when theactuator e is at either extremity of its throw the teeth of the pinion dwill lock against the blank, so that the said pinion cannot rattle whenthe bell is not operated. A pinion g,having an extended hub 9', (seeFig. 8,) is mounted loosely on the stud ct above the pinion f, and tosaid pinion the hammer-carrier is rigidly attached.

As shown in Figs. 2 and 7, the actuator c has attached thereto near itsinner end a curved stop pin 6 which normally rests against the hub g andprevents it and its connected parts from rattling, a great desideratumin bicyele-bells, as abell Whose mechanism constantly rattles is veryojectionable to riders.

The gear d meshes with the pinion g and rotates it and thehammer-carrier when the actuator is swung by means of the fingerpiece eprojecting through a slot 10 in the base a in usual manner.

The hammer-carrier is shown as a plate It, having a hole h at each endto receive looselyheaded studs 71 on which the hammers (shown asmetallic disks) 72, are mounted.

. A lug b is struck up from the plate h at each side of its center toreceive and hold one end of a peculiarly-shaped spring, said springbeing composed of two coiled portions 8 and s at right angles to eachother and connected by a straight portion 8 The coil 8 surrounds thestud 72. between its upper head and the top of the hammer h, pressingthe latter against the plate 7L, while the coil s is interposed betweenthe stud and the lug 7t and normally maintaining the hammer pressed outtoward the end of the hammer-carrier in a yielding manner. By thisconstruction the hammers are prevented from rattling and one springserves the double purpose of seating and pressing the hammer outward toengage a projection Z2 (see Fig. 1) on the interior of the gong b as thehammer-carrier is rotated.

The bell herein described is very simple, cheap to construct, efficientin operation, and consists of a comparatively small number of parts, andis entirely free from all rattling and improper vibration.

I claim- 1. The base, its attached gong, a vibratable actuator having asegmental gear; a rotatable hammer-carrier having an attached pinion;and connecting-gearing, including a locking-gear, between the segmentalactuating-gear and the hammer-carrier, substantially as described.

2. In a bell of the class described a rotatable hammer-carrier; a pinionfixed thereto and having an extended hub; a segmental actuating-gear;gearing intermediate it and the hammer-carrier pinion, to rotate thelatter, and a stop on the segmental gear to normally engage the hub ofthe hammer-carrier pinion, substantially as described.

I11 a bell of the class described, a rotatable hammer-carrier having anattached pinion; the gear cl in mesh therewith; a pinion secured to saidgear; amutilated gear engaging said pinion, to normally lock it; apinion f attached to said mutilated gear; and a segmentalaet-uating-gear in mesh with and to rotate said pinion f, substantiallyas described.

4. In a bell of the class described, a rotatable hammer-carrier,actuating mechanism to rotate it, and means comprising a train ofgearing including a mutilated gear, to normally engage and preventrattling of said mechanism, substantially as described.

5. A rotatable hammer-carrier having a hole at one end, a disk-likehammer, a headed stud extended through said hole and the hammer, and aspring to normally hold the hammer upon the hammer-carrier and also tomaintain the hammer pressed outwardly, substantially as described.

6. In a bell, the base, a clamp comprising a member centrally fixed toand having upturned ears to enter the base, forming additional supportfor the clamp member, a movable member, and connecting-screws to drawthe members of the clamp together, substantially as described.

7. In a bell, the base, a clamp comprising a downcurved member centrallyattached to the base and upturned at its ends to form cars which enterthe base and prevent rotation of the said clamp member, a movableupcurved member, and adjusting screws threaded into the fixed memberbetween the down and up turned portions thereof, to draw the members ofthe clamp together, substantially as described.

In testimony whereof I have signed my name to this specification in thepresence of two subseribin g witnesses.

NORMAN T. MILLS. \Vitnesses:

J OHN C. EDwAnDs, AUGUSTA E. DEAN.

